1 /***********************************************************
2 Copyright 1987, 1998 The Open Group
4 Permission to use, copy, modify, distribute, and sell this software and its
5 documentation for any purpose is hereby granted without fee, provided that
6 the above copyright notice appear in all copies and that both that
7 copyright notice and this permission notice appear in supporting
10 The above copyright notice and this permission notice shall be included in
11 all copies or substantial portions of the Software.
13 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
14 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
15 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
16 OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
17 AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
18 CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
20 Except as contained in this notice, the name of The Open Group shall not be
21 used in advertising or otherwise to promote the sale, use or other dealings
22 in this Software without prior written authorization from The Open Group.
25 Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
29 Permission to use, copy, modify, and distribute this software and its
30 documentation for any purpose and without fee is hereby granted,
31 provided that the above copyright notice appear in all copies and that
32 both that copyright notice and this permission notice appear in
33 supporting documentation, and that the name of Digital not be
34 used in advertising or publicity pertaining to distribution of the
35 software without specific, written prior permission.
37 DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
38 ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
39 DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
40 ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
41 WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
42 ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
45 ******************************************************************/
47 /************************************************************
48 Copyright 1994 by Silicon Graphics Computer Systems, Inc.
50 Permission to use, copy, modify, and distribute this
51 software and its documentation for any purpose and without
52 fee is hereby granted, provided that the above copyright
53 notice appear in all copies and that both that copyright
54 notice and this permission notice appear in supporting
55 documentation, and that the name of Silicon Graphics not be
56 used in advertising or publicity pertaining to distribution
57 of the software without specific prior written permission.
58 Silicon Graphics makes no representation about the suitability
59 of this software for any purpose. It is provided "as is"
60 without any express or implied warranty.
62 SILICON GRAPHICS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
63 SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
64 AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL SILICON
65 GRAPHICS BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL
66 DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
67 DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
68 OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH
69 THE USE OR PERFORMANCE OF THIS SOFTWARE.
71 ********************************************************/
75 #define InitialTableSize 100
77 typedef struct _Node {
78 struct _Node *left, *right;
80 unsigned int fingerPrint;
84 #define BAD_RESOURCE 0xe0000000
86 static xkb_atom_t lastAtom = XKB_ATOM_NONE;
87 static NodePtr atomRoot;
88 static unsigned long tableLength;
89 static NodePtr *nodeTable;
92 XkbcAtomText(xkb_atom_t atom)
96 if ((atom == XKB_ATOM_NONE) || (atom > lastAtom))
98 if (!(node = nodeTable[atom]))
104 XkbcAtomGetString(xkb_atom_t atom)
106 const char *ret = XkbcAtomText(atom);
107 return ret ? strdup(ret) : NULL;
111 xkb_atom_intern(struct xkb_context *context, const char *string)
121 return XKB_ATOM_NONE;
123 len = strlen(string);
125 for (i = 0; i < (len + 1) / 2; i++) {
126 fp = fp * 27 + string[i];
127 fp = fp * 27 + string[len - 1 - i];
131 if (fp < (*np)->fingerPrint)
133 else if (fp > (*np)->fingerPrint)
134 np = &((*np)->right);
136 /* now start testing the strings */
137 comp = strncmp(string, (*np)->string, len);
138 if ((comp < 0) || ((comp == 0) && (len < strlen((*np)->string))))
141 np = &((*np)->right);
147 nd = malloc(sizeof(NodeRec));
151 nd->string = malloc(len + 1);
156 strncpy(nd->string, string, len);
159 if ((lastAtom + 1) >= tableLength) {
163 if (tableLength == 0)
164 newLength = InitialTableSize;
166 newLength = tableLength * 2;
168 table = realloc(nodeTable, newLength * sizeof(NodePtr));
170 if (nd->string != string)
175 tableLength = newLength;
176 table[XKB_ATOM_NONE] = NULL;
182 nd->left = nd->right = NULL;
183 nd->fingerPrint = fp;
184 nd->a = (++lastAtom);
185 *(nodeTable + lastAtom) = nd;
191 FreeAtom(NodePtr patom)
194 FreeAtom(patom->left);
196 FreeAtom(patom->right);
202 XkbcFreeAllAtoms(void)
204 if (atomRoot == NULL)
210 lastAtom = XKB_ATOM_NONE;